Ty -Jour T1-拉丁美洲儿童和青少年严重哮喘恶化的全基因组关联研究JF-欧洲呼吸杂志Qi au -forno,Erick au -Herrera -luis,Esther au -Pino -yanes,Maria au -Qi -Qi,Cancan Au -Rios,Raimon au -Han,Yueh -Yeing au -kim,kim,soyeon au -oh au -sam au -sam au -acosta -acosta -acosta -acosta -acosta-Pérez,Edna au -Zhang,Rong Au -Hu -Hu,Donglei au -Eng,Celeste au -Huntsman,Scott au -avila -Avila,Lydiana au -Boutaoui -nadia au -nadia au -cloutier,Michelle M.Au -au -au -au -au -soto -quiros,manuel E.,Manuel E.,Manuel E.,Manuel E.Au -Xu,Cheng -jian au -Weiss,Scott T. au -Lasky -Su,Jessica au -Kiedrowski,Megan R. Au -Figueiredo,Camila au -Bomberger,Jennifer au -Barreto -Barreto,Mauricio L. au -canino,Glorisa,Glorisa,GlorisaAu -Chen,Wei au -Koppelman,Gerard H. Au -Burchard,Esteban G. Au -Celedón,Juan C. Y1-2021/04/01 Ur -http://http://www.qdcxjkg.com/content/57/4/44/44/44/2002693.Abstract N2-严重的哮喘患者是学校ABS的主要原因儿童的加密和医疗保健费用,尤其是那些高危种族/族裔群体。为了确定拉丁裔儿童和青少年严重哮喘恶化的易感基因,我们对4010 Latino的全基因组关联研究(GWAS)进行了荟萃分析在四个独立队列中患有哮喘的青年,包括1693个波多黎各人,1019名哥斯达黎加人,640名墨西哥人,256名巴西人和402名其他拉丁裔亚组成员。然后,我们进行了甲基化定量性状基因座,表达定量性状基因座和表达定量性状甲基化分析,以评估荟萃分析中顶级的单核苷酸多态性(SNP)是否与单独的鼻腔(AIRWAIL(AIRWAIL)上皮中的DNA甲基化和基因表达)有关cohorts of Puerto Rican and Dutch children and adolescents.In the meta-analysis of GWAS, an SNP in FLJ22447 (rs2253681) was significantly associated with 1.55 increased odds of severe asthma exacerbation (95% CI 1.34–1.79, p=6.3×10−9)。该SNP与FLJ22447基因座的CpG位点(CG25024579)的DNA甲基化显着相关,这反过来又与波多黎各儿童和青少年的鼻呼吸道上皮中KCNJ2-AS1的表达增加有关(β= 0.10,p = 2.18,p = 2.18,p = 2.18,×10-7).SNP RS2253681与FLJ22447中CIS-CPG的DNA甲基化以及拉丁裔青年的严重哮喘患者的DNA甲基化显着相关。 This may be partly explained by changes in airway epithelial expression of a gene recently implicated in atopic asthma in Puerto Rican children and adolescents (KCNJ2-AS1).A novel SNP in FLJ22447 is significantly associated with both severe asthma exacerbations in Latino youth and DNA methylation of a cis-CpG in nasal epithelium. This CpG is linked to nasal epithelial expression of a gene implicated in atopic asthma. https://bit.ly/33D9Joc ER -